DuckDuckGo:  Doesn't track your searches or collect personal information. Offers basic search features and emphasizes unbiased results.

Startpage: Uses Google's search results but anonymizes your searches. Ideal if you want Google's results without the privacy concerns.

Qwant:  European search engine with strong privacy protections and focus on European content.

Wolfram Alpha:  Computes answers to complex questions using data and algorithms. Excellent for research and technical inquiries.

Ecosia:  Ecosia offers a unique proposition – it plants trees as you search. This alternative search engine utilizes its surplus income to support conservationist organizations that plant trees.